KR102600808B1 - 랜덤 액세스 절차를 수행하는 방법 및 장치 - Google Patents

랜덤 액세스 절차를 수행하는 방법 및 장치 Download PDF

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KR102600808B1
KR102600808B1 KR1020180088109A KR20180088109A KR102600808B1 KR 102600808 B1 KR102600808 B1 KR 102600808B1 KR 1020180088109 A KR1020180088109 A KR 1020180088109A KR 20180088109 A KR20180088109 A KR 20180088109A KR 102600808 B1 KR102600808 B1 KR 102600808B1
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KR20190013624A (ko
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아닐 에기월
사이다이 아무루
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삼성전자 주식회사
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0077—Transmission or use of information for re-establishing the radio link of access information of target access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H04W74/0838—Random access procedures, e.g. with 4-step access using contention-free random access [CFRA]

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
KR1020180088109A 2017-07-27 2018-07-27 랜덤 액세스 절차를 수행하는 방법 및 장치 Active KR102600808B1 (ko)

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IN201711026769 2017-07-27
IN201711026769 2017-07-27

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KR102600808B1 true KR102600808B1 (ko) 2023-11-10

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US (2) US11647544B2 (enExample)
EP (2) EP4336903A1 (enExample)
JP (1) JP7296938B2 (enExample)
KR (1) KR102600808B1 (enExample)
CN (2) CN110945957B (enExample)
AU (1) AU2018306399B2 (enExample)
CA (1) CA3071092A1 (enExample)
WO (1) WO2019022572A1 (enExample)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10873929B2 (en) * 2016-11-06 2020-12-22 Lg Electronics Inc. Method and user equipment for transmitting random access signals, and method and base station for receiving random access signals
US11115983B2 (en) 2016-11-11 2021-09-07 Qualcomm Incorporated Data and control channels in synchronization bursts for millimeter wave new radio
WO2018201670A1 (en) 2017-05-05 2018-11-08 Qualcomm Incorporated Ue selection of common and dedicated rach resources
EP4336903A1 (en) * 2017-07-27 2024-03-13 Samsung Electronics Co., Ltd. Method and apparatus for performing random access procedure
US11147114B2 (en) * 2017-08-01 2021-10-12 Htc Corporation Method of handling dual connectivity and related communication device
CN109392060B (zh) * 2017-08-02 2020-07-28 维沃移动通信有限公司 一种rar的监听方法、发送方法、相关设备及系统
US10674543B2 (en) * 2017-08-10 2020-06-02 Htc Corporation Device and method of handling random access procedure
EP4132103A1 (en) * 2017-08-10 2023-02-08 IPLA Holdings Inc. Connected mode mobility in new radio
CN109392186B (zh) * 2017-08-10 2021-01-08 维沃移动通信有限公司 随机接入方法、终端、网络设备及计算机可读存储介质
US10972199B2 (en) * 2017-09-08 2021-04-06 Huawei Technologies Co., Ltd. RSSI measurement method, network device, and terminal device
US11445436B2 (en) * 2017-09-11 2022-09-13 Nokia Of America Corporation Cell selection and resource allocation thresholds
EP4236460B1 (en) * 2017-10-06 2024-12-18 Sharp Kabushiki Kaisha Random access channel resource selection in multi-beam environment
WO2019096679A1 (en) * 2017-11-16 2019-05-23 Telefonaktiebolaget Lm Ericsson (Publ) Random access procedure
WO2019104299A1 (en) * 2017-11-27 2019-05-31 Idac Holdings, Inc. Initial access and channel access in new radio/new radio-unlicensed (nr/nr-u)
CN111418226B (zh) 2017-11-28 2024-04-26 瑞典爱立信有限公司 用于无线通信的触发测量报告
US10880864B2 (en) * 2018-02-22 2020-12-29 Qualcomm Incorporated Methods and apparatuses for waveform indication in high-frequency bands
US11197324B2 (en) * 2018-02-23 2021-12-07 Qualcomm Incorporated NR RACH MSG3 and MSG4 resource configuration for CV2X
US11057938B2 (en) * 2018-05-23 2021-07-06 Qualcomm Incorporated Wireless communication including random access
CN110636542B (zh) * 2018-06-22 2021-01-08 维沃移动通信有限公司 非授权频段上波束管理的方法、设备和介质
EP3881633B1 (en) 2019-02-13 2023-12-06 Samsung Electronics Co., Ltd. Method and apparatus for handling msga retransmissions during 2 step random access procedures in wireless communication system
CN113424579A (zh) * 2019-02-13 2021-09-21 苹果公司 用于在两步随机接入过程中生成mac格式以进行消息收发的装置和方法
CN113455090B (zh) * 2019-02-14 2024-09-27 上海诺基亚贝尔股份有限公司 增加用于未授权频段中的随机接入的前导码传输时机
KR20210126615A (ko) * 2019-02-15 2021-10-20 가부시키가이샤 엔티티 도코모 유저단말
CN119071934A (zh) 2019-03-14 2024-12-03 韩国电子通信研究院 用于在通信系统中控制终端接入的方法
KR20200110201A (ko) 2019-03-14 2020-09-23 한국전자통신연구원 통신 시스템에서 단말의 접속 제어 방법
KR102159450B1 (ko) 2019-04-03 2020-09-23 연세대학교 산학협력단 무선 통신 시스템의 랜덤 액세스 장치 및 방법
WO2020213977A1 (ko) * 2019-04-19 2020-10-22 엘지전자 주식회사 무선 통신 시스템에서 랜덤 액세스 절차를 수행하는 방법 및 그 장치
US12185379B2 (en) 2019-04-19 2024-12-31 Lg Electronics Inc. Method for performing random access procedure in wireless communication system and apparatus therefor
EP3959938B1 (en) * 2019-04-26 2024-01-24 Telefonaktiebolaget LM Ericsson (publ) Method and apparatus for random access
KR20210141732A (ko) 2019-04-30 2021-11-23 후지쯔 가부시끼가이샤 랜덤 액세스 방법 및 디바이스 및 통신 시스템
KR102838100B1 (ko) * 2019-07-05 2025-07-25 삼성전자주식회사 무선 통신 시스템에서 랜덤 액세스 절차를 위한 장치 및 방법
CN114270932A (zh) * 2019-08-16 2022-04-01 Lg电子株式会社 用于在支持物联网的无线通信系统中发送和接收下行链路信息的方法及其装置
US12022556B2 (en) 2020-02-28 2024-06-25 Qualcomm Incorporated Maintaining sidelink (SL) connectivity for SL configured with discontinuous reception (DRX)
US12375153B2 (en) * 2020-03-20 2025-07-29 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatuses for spatial resource selection
CN115516987B (zh) * 2020-05-29 2025-07-01 中兴通讯股份有限公司 随机接入前导码的配置
CN113949421B (zh) * 2020-07-17 2023-02-24 维沃移动通信有限公司 确定波束信息的方法、装置及电子设备
CN112188638B (zh) * 2020-09-30 2023-03-14 中国信息通信研究院 一种非竞争随机接入资源指示方法、设备、介质和系统
US11877344B2 (en) * 2020-12-14 2024-01-16 Charter Communications Operating, Llc Apparatus and methods for wireless coverage enhancement using technology detection
CN114828040B (zh) * 2021-01-29 2025-08-08 中国移动通信有限公司研究院 随机接入方法、装置、设备及可读存储介质
US11683849B2 (en) * 2021-03-24 2023-06-20 Nokia Technologies Oy Redcap UE identification
US20230370966A1 (en) * 2022-05-13 2023-11-16 Apple Inc. Smart cell selection
US12471149B2 (en) 2022-11-23 2025-11-11 Nokia Technologies Oy Method for initial access procedure
TWI881782B (zh) * 2024-04-03 2025-04-21 緯創資通股份有限公司 非暫態電腦可讀取媒體和波束搜尋的方法

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101424258B1 (ko) 2006-08-23 2014-08-13 엘지전자 주식회사 무선통신 시스템에서 랜덤 액세스 과정을 수행하는 방법
GB2461158B (en) * 2008-06-18 2011-03-02 Lg Electronics Inc Method for performing random access procedures and terminal therof
CN102083228B (zh) * 2010-02-11 2015-05-20 电信科学技术研究院 一种中继系统的随机接入方法和设备
CN102300203B (zh) * 2011-04-29 2015-03-25 电信科学技术研究院 随机接入的触发及发起方法、系统和装置
WO2012173565A1 (en) 2011-06-17 2012-12-20 Telefonaktiebolaget L M Ericsson (Publ) Methods and nodes for random access
US9820159B2 (en) 2012-10-29 2017-11-14 Telefonaktiebolaget Lm Ericsson (Publ) Radio resource management in inter-operator time sharing of frequency spectrum
WO2014116928A1 (en) * 2013-01-25 2014-07-31 Interdigital Patent Holdings, Inc. Methods and apparatus for vertical beamforming
US20160057783A1 (en) 2013-03-26 2016-02-25 Nokia Solutions And Networks Oy Mechanism for Providing Communication Resources for Random Access of a User
CA2920638C (en) 2013-08-07 2022-01-04 Samsung Electronics Co., Ltd. Method and apparatus for transmitting and receiving resource allocation information in a wireless communication system
WO2015094057A1 (en) 2013-12-19 2015-06-25 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for providing random access information when paging a wireless device
US10476834B2 (en) * 2014-03-11 2019-11-12 Huawei Technologies Canada Co., Ltd. System and method for random access
KR20150134908A (ko) * 2014-05-23 2015-12-02 삼성전자주식회사 무선통신 시스템에서 저비용(low-cost)단말의 송수신 방법 및 장치
EP3225070A1 (en) 2014-11-26 2017-10-04 IDAC Holdings, Inc. Initial access in high frequency wireless systems
CN107926069B (zh) * 2015-08-24 2022-02-18 三星电子株式会社 无线通信系统中用于通信的方法和装置
CN106559905B (zh) 2015-09-24 2020-04-21 株式会社Kt 用于mtc ue接收随机接入响应的方法和装置
US10278160B2 (en) 2016-02-26 2019-04-30 Samsung Electronics Co., Ltd. Apparatus and method for performing random access in beam-formed system
PT4333501T (pt) * 2017-01-05 2025-01-24 Nokia Technologies Oy Método e dispositivo de utilizador para selecionar um feixe para transferência
US10368334B2 (en) * 2017-03-17 2019-07-30 Ofinno Technologies, Llc Radio access network paging area configuration
KR102276839B1 (ko) * 2017-03-17 2021-07-14 삼성전자주식회사 라디오 액세스 네트워크 통지 영역 업데이트 실패
WO2018175721A1 (en) * 2017-03-22 2018-09-27 Idac Holdings, Inc. Delayed handover execution in wireless networks based on a trigger condition
US10757621B2 (en) * 2017-03-22 2020-08-25 Ofinno, Llc Conditional handover execution
US10257835B2 (en) * 2017-03-24 2019-04-09 At&T Intellectual Property I, L.P. Facilitating enhanced beam management in a wireless communication system
EP3873146A1 (en) * 2017-05-03 2021-09-01 IDAC Holdings, Inc. Method and apparatus for paging procedures in new radio (nr)
WO2018203628A1 (ko) * 2017-05-03 2018-11-08 엘지전자 주식회사 임의 접속 채널 신호를 전송하는 방법과 사용자기기, 및 임의 접속 채널 신호를 수신하는 방법 및 기지국
CN108810922B (zh) * 2017-05-03 2021-02-23 华为技术有限公司 一种通信方法及终端、基站
WO2018201670A1 (en) * 2017-05-05 2018-11-08 Qualcomm Incorporated Ue selection of common and dedicated rach resources
RU2734615C1 (ru) * 2017-05-05 2020-10-21 Телефонактиеболагет Лм Эрикссон (Пабл) Устройство беспроводной связи, узел сети радиосвязи и осуществляемые в них способы связи в сети беспроводной связи
US11419143B2 (en) * 2017-06-08 2022-08-16 Qualcomm Incorporated Random access procedure in a wireless backhaul network
US10980064B2 (en) * 2017-06-16 2021-04-13 Futurewei Technologies, Inc. Radio communications using random access in wireless networks
CN111542093B (zh) * 2017-06-16 2021-08-03 华为技术有限公司 通信方法和装置
BR112019027616A2 (pt) * 2017-06-27 2020-07-07 Telefonaktiebolaget Lm Ericsson (Publ) métodos de operação de um dispositivo de comunicação sem fio e de operação de um nó de acesso por rádio, dispositivo de comunicação sem fio, programa de computador, portadora, e, nó de acesso por rádio
US10674383B2 (en) * 2017-07-25 2020-06-02 Mediatek Inc. Channels and procedures for beam failure recovery
EP4336903A1 (en) * 2017-07-27 2024-03-13 Samsung Electronics Co., Ltd. Method and apparatus for performing random access procedure

Non-Patent Citations (8)

* Cited by examiner, † Cited by third party
Title
3GPP R1-1707937
3GPP R1-1709897
3GPP R1-1711019
3GPP R1-1711291*
3GPP R1-708726
3GPP R2-1706705
3GPP R2-1707276*
3GPP R2-1707602

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CN110945957B (zh) 2024-03-12
EP3643135A4 (en) 2021-03-31
JP7296938B2 (ja) 2023-06-23
CN118215153A (zh) 2024-06-18
EP4336903A1 (en) 2024-03-13
AU2018306399B2 (en) 2022-12-01
CN110945957A (zh) 2020-03-31
AU2018306399A1 (en) 2020-02-13
KR20190013624A (ko) 2019-02-11
EP3643135A1 (en) 2020-04-29
CA3071092A1 (en) 2019-01-31
US20230232464A1 (en) 2023-07-20
JP2020528711A (ja) 2020-09-24
US12167467B2 (en) 2024-12-10
EP3643135B1 (en) 2023-10-18
US11647544B2 (en) 2023-05-09
AU2018306399A2 (en) 2020-11-05
US20190037605A1 (en) 2019-01-31
WO2019022572A1 (en) 2019-01-31

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